MAX5088 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX5088 Datasheet PDF : 24 Pages
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2.2MHz, 2A Buck Converters with an
Integrated High-Side Switch
Typical Operating Characteristics (continued)
(V+ = VL = 5.2V, TA = +25°C, Figures 5 and 6, unless otherwise noted.)
MAX5089 SOFT-START AND SHUTDOWN
(IOUT = 2A)
MAX5088/89 toc15
VIN = 12V
VOUT
1V/div
0V
VIN STARTUP WAVEFORM
(EN CONNECTED TO VL)
MAX5088/89 toc16
VEN
5V/div
VIN
VOUT
2V/div
VEN
VPGOOD
5V/div
VOUT
RESET TIMEOUT
MAX5088/89 toc17
10V/div
5V/div
2V/div
VEN
5V/div
0V
1ms/div
1ms/div
VIN
10V/div
VRESET
40ms/div
5V/div
MAX5088 EXTERNALLY SYNCHRONIZED
SWITCHING WAVEFORM
MAX5088/89 toc18
5V/div
VSYNC
0V
VCLKOUT
5V/div
0V
VSOURCE
VOUT
10V/div
0V
500mV/div
100ns/div
SWITCHING SUPPLY CURRENT (ISW)
vs. TEMPERATURE
80
70
60
fSYNC = 2.2MHz
MAX5088
VOUT = 3.3V
IOUT = 1A
50
40
fSYNC = 1.2MHz
30
20
fSYNC = 600kHz
10
fSYNC = 300kHz
0
-50 -25 0 25 50 75
TEMPERATURE (°C)
100 125
SHUTDOWN CURRENT
vs. TEMPERATURE
500
450
400
350
300
-40
10
60
110
TEMPERATURE (°C)
CURRENT LIMIT
vs. TEMPERATURE
2.75
VIN = 12V
2.70 VOUT = 3.3V
fSW = 1MHz
2.65
2.60
2.55
2.50
2.45
2.40
2.35
-40
10
60
110
TEMPERATURE (°C)
_______________________________________________________________________________________ 7
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